Dish-washer.



K; sTRM.

DISH WASHER.

APPLICATION FILED NOV. 23, 1908.

unitn ess es K. sTRM. DISH WASHER.

APPLICATION FILED NOV. 23, 1908.

Patented Apr. 12, 1910.

3 SHEETS-SHEET 2.

In verz/07' www K. STRM.

DISH WASHER.

APPLIOATION FILED Nov. za, 190s.

` Patented Apr. 12, 1910.

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DISH-WASHER.

Specication of Letters Pat-ent. Batented Apr. 12, 1910.

Application led November 23, 1908. Serial No. 464,011;

To all whom it may concern:

Be it known that I, KERSTIN Osfrnm, a subject of the King of Sweden, anda resident of Siljansns,in the Kingdom of Sweden, have invented new anduseful Improvements in-Dish-Washers, of which the following is aspecification, reference being had to the drawings-accompanying andforming a part hereof.'

T his'invention relates to dish-washers and drainers of the kind inwhich the dishes are exposed to the cleaning action of wat-er actuatedby centrifugal orce.

The object of the invention is to provide a dish-washer of the said kindin which the water impinging the dishes is strained and caused tocirculate so as to effect an efficient washing of 'the dishes Furtherobjects of the invention will hereinafter appear.

In the rawings, I have shown, by way of example, two di'erent forms of adishwasher embodyingthe invention. Y Figure 1 is a side elevation of theone embodiment. Fig. 2 is a horizontal section of the same on line A--Bof Fig. 1. Fig. 3 is a horizontal section of the same apparatus on lineC-D of` Fi 1. Fig. 4 is a plan view of the netting or retaining thedishes in position during washing. Fig. 5 is a central vertical sectionof the second embodiment. Fig. 6 is a horizontal section of the saidlatter embodiment.

Referring to Figs. 1-4 of the drawings, the apparatus has an outer wall1 suitably cylindrical in shape and provided, at its top, with a cover2. The inner wall of the apparatus is similar in shape to the outer oneand suitably consists of a cylindrical part 3 having, at its top, acover 4. The cylindrical wall 3 and the cover 4 are both perforated. Theinner wall and the outer one are itted to a common bottom 5. Situatedinthe cylindrical part of the apparatus is a door l6 having doublewallscorresponding to the walls 1 and 3, respectively, so that a waterchamber is formed in Athe door. The dishwater enters into this chamberthrough openings in the side-walls 7, 8 and 9, 10, respectively (Fig.2), and through similar openings in the up er'wall 11 of the door andthe wall 12 of e door frame adjacent `thereto (Fig. 1).l Similarly tothe wall 3, the

inner part of the door is perforated preferably over its whole surface.T he door or the to the shaft 13 are trays or crates 14 extending/rou'nd about the shaft and provided with upwardly directed edges, asshown in the drawing. The crates 14 are, suitably, adjustable along theshaft and adapted to be clamped in position by suitable clamping devices(not shown). The crates are perforated, similarly t`o the inner wall ofthe wash-chamber, on their whole surfaces and provided, at their uppersides, with suitable devices for retainin the dishes placed on thecrates. Obvious y, the said devices are to be suited to the kind ofdishes to be washed. The dish-holding crates may be formed of wirenetting-or the like and they may be of the form and size most suitablefor holding and retaining the dishes.

Placed above the outer vessel is a tank `or receptacle for dish-water,said receptaclel suitably consisting of an upper bowl 15 communicatingwith a chamber situated betweenthe cover 2 and an upper cover 18.Extending `through the bow and through the said chamber 1s a valvespindlel carrying, at its lower end, a valve 17 adapted to close acentral opening in the cover 2. 'Water filled in the bowl 15 thus runsinto the chamber between the covers 2 and 18 arid fills the said chamberand the bowl. By raising the valve 17 the water `1s caused to run downinto the washing vessel. The vessel is carried byfeet 19 so that thereis a free space beneath the bottom 5. Flaced in the said space is thegearing connectedto the shaft 13, saidl gearlng consisting, in theembodiment illustrated, of a-bevel gear 20 connected to a pulley 21driven by a belt anda crank wheel 22 placed at t e outer side of thevessel. Placed beneath the bottom 5 is a funnel 23, or the like, saidfunnel closing against an outlet opening in the said bottom, saidIopening being regulable by means of a slide 24.l The opening and funnelserve as an outlet .for the slope, which are thus received by the funnel23 andled into a collecting vessel or drain.'

The netting 25 shown in Fig. 4 may be expanded, in the manner shown inthe drawing, in the shape of a circle and 1s employed other crates maybe retained by the upper crate adjacent thereto, which may 'be'loweredinto close contact with thel contents of the crate under it, each of theupper crates '.thus forming a vcover for the lower crate adjacentthereto.

The apparatus described works in the following manner.'A lThe dishes areintroduced through the. opened door, placed on the crates and fastenedin such a manner that4 they cannot be thrown outwardly when the cratesare rotated.v The door is thereupon well closed andthe bowl 15 andchamber below. ity are yfilled with hot water. The

crates with the dishes are caused to rotate and the. valve 17 is opened.rIYhedish-water now runs through the cover 4 into the vesf sel which isfilled with water to a greater or smaller height. During the rotation ofthe crates the dishes are washed. by the water which, on account of the.rotation, is at the same t1me thrown outinto the space between -thewalls land 3Q The remains of foodv are separated atthc inner side of theperforated wall 3 and thewater rises along the innerv side of the wall 1and returns through the erforated washing vesselv cover 4 into the inorder to again circulate as described. When the crates have rotated afew minutes, the slo s are drawn od through the opening in the ottoni ofthe vessel and the funnel 23. Thereupon the opening is again closed andhot water, referably with carbonate of soda or the li e dissolvedtherein, isv admitted, whereupon the rotatin and drawing off of theslops is re cated. hen a further quantity of water as been admittedanddrawn ofi', the speedof rotation is increased for draining the dishes.

Referring now to Figs. 5 and 6, the apparatus comprises a frame 26carrying a ,vessel27 the bottom of which is provided with an outlet of acomparativelyV large cross-sectional area regulable by means of a tap orcock28. Placed within the vessel 27, at a suitable,v distance from thewall, is a cylinder 29 of perforated sheet-metal, said cylinder beinattached to and carried by thebottom o the vessel 27. rlhe cylinder 29isprovided with a cover 30 which suit-V ablyv slopes toward the centerWhere the cover has a large opening 31. Provided fat the sides of thesaid opening are other openings 32. Placed within the stationarycylinder 29 isa rotary basketl 33 made of perforated sheet-metal,netting, or

vthe like, said basket being placed at a dirtance from the stationarycylinder 29 so as to leave a space 34 between the said cylinder and thebasket. The basket is carried by afyertical spindle 35 adapted tob'e'i'rotated by a crank 36 connected by suitable gearing to the'saidshaft, las shown in F ig. 5. The

vertical wall of the basket 33 is provided with obliquely set slits 37cut in the wall from the upper edge d own to the bottom and the edges ofsaid slits are benti-nwardly so as to form inwardly directed, obliquelytered into the space 38 between the cylinder 29- and the outer vessel 27rises along the wall ofthe latterand arrives at the cover 30 upon whichit runs toward the center and through the openings 31 and 32 thereindown upon the dishes in order to again iinpingethe latter and streamoutwardly 1n the same manner as before as long as the crank. is rotated.

r1`he"dishe's'in'closed within the basket 33 areJ suitably placed inholders of any con'- venient shapey and construction, said holdersbeing, preferably, suited to the dishes to be washed. 1n the drawing(Figs. 5 and 6) 1 have shown a Aholder 39 forcomrnon plates, said holderconsisting of two lower bars and one upper bar connected together attheir ends by suitable end-pieces, and having a number of correspondingrecesses for the plates which are placed ou edge in the said holder, onebehind the other, in such a position that the waterimpinges and streamspast thesanie. Dishes of other forni, such as cups, glasses, andthelike, are lplaced in other holders and in the. osition 1n which they aremost easily accessi le to the impingling and whirling water.

The apparatus last described may be used in the following way: Hot water1s poured on the greasy plates and the like, the cock 28 bein ke t open.|The cock is thereupon shut ott an the apparatus is filled to about 1A;of the depth of the basket 33 with hot Water which has been vmade soapyor in condition to dissolve grease from the dishes. The cock 28 isthereu on opened for a while, in order to drain o remains offood sunk tothebottom of the apparatus, whereupon it is again closed. The crank 36is then slowly turned for a minute, whereupon the speed is increased.This increase in speed causes the water to rise in the outer space 38and to stream back toward the center. l/'hen the apparatus has thus beenrunning about 3 minutes, the Washing is almost completed, and while thecrank is still rotated f all the water is rapidly drawn ol 'lhe cover 30is thereupon removed, without the apparatus being stopped, and a fewscoops of hot water are poured on the dishes, while the cock is ke topen, so that the water rapidly runs 0E.' The speed of rotation is nowincreased and continued for a minute so as to dry the dishes. Theapparatus is thereupon stopped and the dishes are leftfor a-While forallowing the water to evaporate. When the dishes are then removed, theyare dry and clean, at least as far as porcelain vessels are concerned,ywhereas glasses and the like may sometimes require a short subsequentdrying.

In conclusion I wish to point out that I do not restrict myself to theprecise details of construction and arrangement hereinbefore describedand illustrated, since it is obvious that the apparatus may be variedconsiderably and in many particulars without departure from theprinciple of my invention.

Iclaim :1.

l. In a dish-Washer, the combination of a vessel, a perforatedcasinginside the said vessel, at a distancefrom the wall thereof, acover at the top of the said casing, said cover having openings allowingwater to run down therethrough, a rotary basket situated inside the saidcasing, and means for rotatingl the said basket, substantially as andfor the purpose set forth..

vessel, a perforated casing inside the said,l

vessel, at a distance from the wall thereof,

a vcover at the top of the said casing, said.

cover having openings allowing water to run down therethrough, a rotaryreceptacle situated inside the said casing, said receptacle havin extening anges on one edge of the said slits, and means for rotating the saidreceptacle, substantially as and for the purpose set forth.

In a dish-washer, the ycombination of a vessel, a perforated casinginside thesaid vessel, at a distance from the wall thereof, a cover atthe top of the said casing, said cover having openings allowing watertok run down therethrough, a rotary receptacle situated inside the saidcasing, said receptacle having slits extending obliquely from the top ofthe rece tacle 'tothe botslits in the wall thereof, inwardly.

tom thereof, flanges exten ingjnwardly and forwardly from the rear edgesof the said slits, and means foi` rotating the said receptacle,substantiallyas and" for the pur-p pose set forth.

lKunsrnu sTRM.

vVitnesses:

JOHAN VICTOR WAHLSTRM, GEORG HENNIX.

